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19 lines
265 B
C++
19 lines
265 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int gcd(int a, int b) {
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if (!b) return a;
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return gcd(b, a % b);
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}
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int main() {
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int n, a, b;
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cin >> n;
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while (n--) {
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cin >> a >> b;
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cout << gcd(a, b) << endl;
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}
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return 0;
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}
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